CVE-2025-58122: Checkmk

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Insufficient permission validation in Checkmk 2.4.0 before version 2.4.0p16 allows low-privileged users to modify notification parameters via the REST API, which could lead to unauthorized actions or information disclosure.

Affected products

• Checkmk Checkmk: version 2.4.0 only

Published 2025-11-18. Last modified 2026-06-17.